<!DOCTYPE html>
<html>

	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			body {
				margin: 0;
			}
			
			.wrapper {
				padding: 0 100px 0 100px;
				overflow: hidden;
			}
			
			.wrapper .center {
				width: 100%;
				background-color: antiquewhite;
				word-break: break-word;
				float: left;
			}
			
			.wrapper .left {
				position: relative;
				float: left;
				margin-left: -100%;
				width: 100px;
				left: -100px;
				background: red;
			}
			
			.wrapper .right {
				position: relative;
				float: left;
				background-color: brown;
				width: 100px;
				margin-left: -100px;
				right: -100px;
			}
		</style>
	</head>

	<body>
		<div class="wrapper">
			<div class="center">
				这是中间内容
			</div>
			<div class="left">
				这是左侧内容
			</div>
			<div class="right">
				这是右侧内容
			</div>
		</div>
	</body>

</html>